Deck boards upside down - cupping

So long story short, thought the wood should be installed bark side up but apparently the common way is opposite. I thought the wood would cup "with" the rings - I guess not. All of my boards are now "upside down".

Deck is 16x18 and I don't really want to but if I need to, I can flip them. Is it worth it or will it be ok? I can notice a bit of cupping already...

Deck boards upside down - cupping

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Deck boards upside down - cupping

After reading the article I was surprised at how much of it I knew from experience, and reading. The one thing that caught my attention was the 50 year warranty. I wasn't wondering if the process would perform that long, but if the company would. The best advice I can think of came from the first framing crew I worked on. When nailing or screwing the lumber, the fasteners should go as close to the edge as possible. For decking that would be no more than 3/4" from the edge. It is much harder for that 3/4" to cup than 2", and fasteners near the center do little. whichever side dries faster, shrinks faster. Even more important was fastening 2 pieces of lumber together, i.e. studs & jacks, sister joists, etc. All the outside edges shrink faster than the adjoining surfaces and they cup away from each other. One major cause of drywall screw pops. All things considered I favor wood, and Trex is my lowest choice for composit decking compared to others